/* Project Euler problem 1 */

#include <stdio.h>

int main() {
	int sum = 0;
	for(int i=0; i<1000; i++) {	
		if((i%3 ==0)||(i%5==0)){
			sum+=i;		
		}
	}
	printf("sum: %d\n", sum);

	return 0;
}
